Collar and cuff button.



No. 818,486. PATENTED APR. 24, 1906. J. K. & J. G. D. THOMA. COLLAR AND CUFF BUTTON.

APPLICATION FILED MAR. 31. 1905. Y

PATENT @FFICE.

JAMES K. THOMA,

OF NEAR COOPERSTOWN, AND JAMES G. D. THOMA,

OF ONEONTA, NEWV YORK.

COLLAR AND CUFF BUTTON.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed March 31,1905. Serial No. 253,116.

To all whom it may concern.-

Be it known that we, JAMES K. THOMA, residing near Cooperstown, and learns G. D. THOMA, a resident of Oneonta, in the county of Otsego, State of New York, citizens of the United States, have made a certain new and useful Invention in Collar and Cuff Buttons; and we declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Figure 1 is a perspective view of a cuff having our button applied thereto with the head turned in locking position. Fig. 2 is a simi lar view showing the head of the button turned in position to be easily removed from the button-hole. Fig. 3 is a perspective view of a collar havin our invention applied there' to, with the head of the button in locking position transverse to the buttonhole. Fig. 4 is a similar view showing the head of the button turned in position to be easily removed from the buttonhole or parallel thereto. Fig. 5 is an enlarged detail fragmentary view illustrating the locking engagement of the frictional faces I) and h, the position of the head e when in the plane of the shank I) being shown in dotted lines. spective views of a link cuff-button having our invention applied thereto, with the head of the button turned at right angles to and in the plane of the flattened shank, respectively. Figs. 8 and 9 are similar views of an ordinary collar or cuff button. Fig. 10 is a detail sectional view taken on the line 10 10, Fig. 9.

The invention relates to collar and cuff buttons and it consists in the novel construction and combinations of parts as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the letter a designates the base of the ordinary collar or cuff button, shown in the drawings having a shank I), provided in its end with a threaded seat 0 for the screw stem d of the laterally-elongated head or latch member 6. This shank l) is of flattened form, being provided with lateral extensions or wings f, extending from head to base and for Figs. 6 and 7 are peri the purpose of preventing the shank from turning in the buttonhole of the collar or cuff.

The outer face I) of the flattened shank around the entrance of the threaded. seat forms an extended frictional bearing-surface for the latch member. This latch member is of flattened oval form, having its convex lat eral faces a meeting in an outer convex edge e extending to the pointed ends 6 Its inner face it is flat near the root of the screwstem d, the thread of which extends nearly or quite to this flat inner face, which also forms a frictional bearing-surface adapted to coopcrate with the inclined face I) of the latch to clamp the parts together. In making the threads of the stein d and seat 0 they are so adjusted to each other that when the latch is screwed home in its seat its inner surface will engage the outer inclined frictional surface of the flattened shank to clamp such parts securely together, and when so engaged. the latch-head will extend transversely or at right angles to the flattened. shank, to hold the button in position in the buttonhole. This relation of the threaded seat and screw-stem is easily secured by grinding the parts or in other suitable ways and is of importance in locking the latch in transverse position, the frictional bearings serving to prevent the latch-head from turning backward until positively turned in that direction to bring the latchhead in the plane of the flattened shank for removal from the buttonhole. The flattened oval or spindle form of the latch having con.- vex sides meeting in a convex outer edge, together with its pointed ends, is designed to enable the wearer to easily introduce it through the buttonhole, as well as to provide for its ready removal therefrom. As the flattened shank prevents it from turning in the buttonhole, there is no liability to frictional twisting between the latch. head and shank.

In Figs. 1, 2, 6, and 7 of the drawings the invention is shown in connection with a link cuff-button.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

A button having a flattened shank provided with an outer inclined frictional bearing-surface, and a rotary flattened latch-head having its pivotal axis in line with said shank and adapted to be turned in the plane of the shank tu nd to have a clamping engagement With said inclined frictional bearing-surface When the 5 flattened head and shank extend at right 311%168 to each other, substantially as speciec In testimony whereof We afliX our signares in presence of two Witnesses.

JAMES K. THOMA. JAMES G. D. THOMA. V

Witnesses:

E. S. BRocKHAM, GEO. H. OARLEY. 

